Shandra , Iryna, and Olha Birova. “Labor of Minors in Industrial of Ukrainian Lands (19th – Early 20th Century)”. Studia Historiae Oeconomicae 41, no. 2 (December 10, 2023): 41–62. Accessed May 9, 2024. https://pressto.amu.edu.pl/index.php/sho/article/view/40440.